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Table 1 Feature values corresponding to anterior-posterior swallowing vibrations

From: A statistical analysis of cervical auscultation signals from adults with unsafe airway protection

 

Thin

Viscous

 

Safe

Unsafe

Safe

Unsafe

Skewness

0.867, 1.470

0.642, 1.963

0.491, 1.455

0.759, 1.621

Kurtosis

87.04, 25.48

27.56, 29.84

96.20, 30.07

39.69, 15.85

Entropy Rate

0.987, 0.007

0.987, 0.007

0.989, 0.006

0.986, 0.004

L-Z Complexity

0.059, 0.031

0.065, 0.030

0.056, 0.039

0.064, 0.029

Peak Freq (Hz)

16.56, 4.732

7.162, 5.161

56.29, 4.414

15.22, 5.613

Center Freq (Hz)

189.7, 138.3

109.2, 115.4

204.7, 113.4

141.0, 78.93

Bandwidth (Hz)

221.1, 222.6

198.1, 158.2

273.7, 174.7

264.2, 86.94

Wavelet Entropy

1.034, 1.348

1.003, 0.976

0.928, 1.139

1.066, 1.120